package com.api.interceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import com.api.config.ApiConstant;
import com.api.entity.User;

public class LoginInterceptor implements HandlerInterceptor{

	@Override
	public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
		
		User user = (User) request.getSession().getAttribute(ApiConstant.LOGIN_SESSION_NAME);
		if (user==null) {
			 response.sendRedirect("/user/login");
             return false;
		}
		
		return true;
	}

	@Override
	public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
		
	}

	@Override
	public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
		
	}
	
	public boolean isAjax(HttpServletRequest request){  
	    String header = request.getHeader("X-Requested-With");  
	    boolean isAjax = "XMLHttpRequest".equals(header) ? true:false;  
	    return isAjax;  
	}  

}
